package com.itheima.reggie.controller;


import org.apache.commons.lang.StringUtils;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.servlet.view.script.ScriptTemplateConfig;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    //员工登录
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
        /**
         * 1、-将页面提交的密码password进行md5却1密处理2、根据贝有被交的用广名lse rrame查浏数据库3、如果没有查询到网返回登录失败结果
         * 4、密码比对，如果不一致则返回登录失败结果
         * 5、查看员工状态，如果为已禁用状态，则返网员工已禁用结果6、登录成动，将员工id存入Scssion并返回{登录成功结果
         */
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //根据页面提交的用户查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp=employeeService.getOne(queryWrapper);

        //判断没有查询到返回登录失败结果
        if (emp == null){
            return R.error("登录失败,没有用户");

        }
        //密码对比
        if(!emp.getPassword().equals(password)){
            return R.error("登录失败，密码不对");
        }
        //判断员工是否禁用
        if (emp.getStatus()==0){
           return R.error("账号已禁用");
            }
        //登录成功，存session
        request.getSession().setAttribute("employee",emp.getId());

        return R.success(emp);
    }

    //退出
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        //清除Session的员工ID
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }
    //新增员工
    @PostMapping
    public R<String> save(HttpServletRequest request, @RequestBody Employee employee){
        log.info("新增员工，员工信息：{}",employee.toString());
        //设置初始密码123456，需要进行MD5加密
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
//
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());

        //获取当前用户的id
//        Long empId = (Long) request.getSession().getAttribute("employee");
//
//        employee.setCreateUser(empId);
//        employee.setUpdateUser(empId);

        employeeService.save(employee);


        return R.success("新增员工成功");

    }

    //分页条件查询
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name){
        log.info("page = {},pageSize = {},name = {}",page,pageSize,name);
        //构造分页构造器
        Page pageInfo = new Page(page,pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        //添加构造条件
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee :: getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);

        //执行查询
        employeeService.page(pageInfo,queryWrapper);

        return R.success(pageInfo);
    }

    //根据ID修改员工信息
    @PutMapping
    private R<String> update(HttpServletRequest request, @RequestBody Employee employee){
        log.info(employee.toString());

//        Long emId = (long)request.getSession().getAttribute("employee");
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(emId);
        employeeService.updateById(employee);

        return R.success("员工信息修改成功");
    }

    //根据ID查询员工信息
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("根据Id查询员工信息...");
        Employee employee = employeeService.getById(id);
        if (employee != null){
            return R.success(employee);
        }
        return R.error("没有查询到对应员工信息");
    }

}
